Improvement in sobole foe watee-wheels



2 SHEETS-SHEET 1.

PATENTBD MAR. 10, 1868.

- T. RoSE. Y SCROLL POR WATER WHEELS.

m: wams grins co. moro-uvm, wAsmNm-om n. cA

No. 75,298. PATBNTBD MAR. 1o, 186s. T. MSB.

SCROLL FOR WATER WHEELS.

2 sums-SHEET z.

me scams PETERS su. Pauw-umn.. wAsHmmoN, u c,

@uiten tstrs @strut @ffice Letters Patent No. 75,298, dated March 10, 1868.

IMPROVEMENT IN lsuitors.` ron WATER-WHEELS.

llgt dgttult rtfttrth tu in tiges: Enters patent ant milking pitt tttlgt time.

-To ALL wHoM IT MAY eoNcEnN:

liie it known that AI, TIMOTHY ROSE,`of Cortlandville, in the county of'I Cortland, and State of New York, have invented certain new und useful Improvements -in Water-Wheel Scrolls.; and I do hereby dechire thefollowing to be a. full, clear, and exact description thc'reoi`reference being had to the accompsnyiugdrawin'g ot' the saine, making part of this specification, in which- I 4Figure 1 represents n horizontal section of s. scroll or water-chest and wheel, embracing my improvement.

Figure 2 represents a. similar view of the scroll-case with the wheel removed. Figure 3 represents the scroll-case in elevation, with the wheel in place. A Uheobjeet of my improvement is to obtain e direct notionl upon the wheel from the -rotary motion of the water in the scroll, and thereby gain un increased power by means of a. curb concentric with the wheel, having openings thereinnnd guides projecting therefrom. l

In .thepsxccempnnying drawings, A represents the wheel, the buckets of which have the ordinary double side vents to discharge the' water. The wheel is constructed of an inner case, B, tothe ends of which the side vents nre secnre'd'in any proper manner, while the-.buckets C are mede tangent to the inner ense, und nre therefore perfectly flut, except at their receiving-ends, which are mndemmgular' or curved, as shown in fig. 1. The depth of this receiving-angle or curved portion of the bucket is proportioned to the lengt-h and width of the bucket, and receives the Erst action of the water fromtheguides.

lThe's'croll to which my improvement relates is known as the wster-chest, and consists of kan inner und an vouter caser. ".lheinrcr one, D,'is concentric with the wheel, and encloses it, und the outer one, E, s`the water- `case, which is made to diminish in regular curves from its mouth to its connection with theinner cuse,u,nd forms the scroll. .The-concentric curb D is provided with a series of openings or issues, a, and u. series of guides projecting from the curb into the scroll, in such s manner us to interrupt the rotary motion of a. portion of-the water, und direct'it through the openings a upon the buckets, in such n manner us'to obtain the direct action of thc-rotary current'iintheiscroll. The openings or issues ain the scroll are proportioned to the :tres ol' the buckets. n'hlle thespnces between these openings a :indV the guides ure-closed by the inner case D, so es to prevent `the iraterin the scroll havingaccess to the buckets, except es directed bythe guides through the openings. The'gnides b project into the scroll, und thedistnnce of their' projection is governed by. the` arca. of the openingen :x-ndlthe number of the buckets of the wheel, so es. to admit the water to the wheel in proportion to 'the` supply .necessary-Tor each bucket. The guides are mde to overlap the openings a suflioient to give the properdirection to the water upon the buckets. The guides and openings thus arranged, cach bucket will be encl'sedby the' cese D, shout two-thirds its length, whereby the water is confined within rind upon the buckets ofthewheel, oudheid there u'ntil it is discharged by the motion of the wheel. Y

I-Ieret-ofore thc'inner side of the scroll hasbcen open to the whole foce of the buckets, and there has been as much pr-essureon' the scroll ns on the buckets, and besides, should there be n luck or" water in the scroll, vthe pressure on. the buckets will be lessened, but by menus of the concentric curb D, these I lisadrnntnges ure avoided. The object oficlo'singup'the inner case'of the scroll between the guides is to bring the water close to the buckets, and upon each bucket, and confine it there with better eil'ect tit-nn has been done heretofore, and 'ut the same time huving'the benefit of the rotary motion of the water t'o back it up in 'the scroll, thereby producing great'pow'er'j'nthe action of the water upon the wheel.l l v Imca-sure the water to bca-discharged by the urea. ot' the openings in the conccntriceurb D, so that the water will have free egress from the wheel, und the issues of the concentric curb D will be well supplied. The guides o und concentric curb D serve to hold the water in each bucket until it passes to the next opening; i

It will be seen thnt the'action of the water on the wheel from n. scroll that admits the water into the whole length'of the bucket utthe sume time, will be very nearly from the outside of the scroll-cnse to the centre of the wheel, in nearly a straight or curved line, und the water begins to discharge nearly :ts soon ns xt strikes the bucket, doing but little good. To obviste thisfand obtain the direct action of the water, I make the guides of c length greater than the width of the openings a, so as to overlap them, as shown in figs. 1 and?, et c, for the purposeot interrupting the direct line of -action from the scroll to the centre of lthe wheel, und cause the Water to enter laterally,l and to receive its direction upon the buckets by the inclined or curved projection ofthe guides.'

It frequently happens that there is a lack in the supply of water. To close the gate-partially at the monili of the scroll does not remedy the loss. of power. I'have, therefore, overcome this disadvantage by arranging within the scroll one or more gates, F, which maybe adjusted'so as to limit the action ofthe-water upon a certain number of buckets, and thus shorten the scroll, whereby the full power of the water may be obtained,

whether there be much or little in the supply. This gate F is hinged to the inner side of the outer case, at G,.

and is curved to correspond ivith the same. Its free end is connected to .the outer case, E, by a. screw-rod, H,

at the outer end of which is athumb-screw, I, by which the gate may be opened and closed. .When closed' so as to shorten the length of the scroll, the end of the gate rests against the overlapping end of the guide b, as

yshown in 13g. 1,'and when openit is'drawn back by the thumb-screw I, so as to allow the action of the water upon the whole number of buckets. The thumb-nut may he pivoted to the outer-case, or the gate may be: adjusted and held in place by any otherdevice. -The gate F-is located in the scroll, so that' when closed, to reduce the length of the Scroll, not less than four guides tvill receive und direct the action of the Water upon the buckets. The gate, th.. -'ei`ore, is arranged to act in connection with the openings a in the case D, and has been found to be of great advantage in adapting the wheel to'the supply of water.

-Having thus described my improvement, I claim-- 1. Making the curb D, between the guides b and openings a, concentric with and enclosing the ivhcel so as to form a closed case to the buckets ofthe Wheel4 between eacl1-guide and opening, in thc manner herein described. I

2. The hinged gate F, the concentric curb D, with its issues a and projectingl guides b, when arranged and combined as described. Y

8. The' gate F, hinged within the scroll, for the purpose oi' shortening or diminishing the length of the same, to adapt it to the supply' of water, as described.

In testimony whereof, I have hereunto sign'ed my name. v

. TIMOTHY ROSE.

Witnesses:

S. R. HUNTER, c

W. S. HUNTER. 

